Effects of an imbedded gravel–sand layer on reclamation of coastal saline soils under drip irrigation and on plant growth

Sun, Jingsheng; Kang, Yongqiang; Wan, Shuqin

doi:10.1016/j.agwat.2013.03.004

Cited by 52 publications

(50 citation statements)

References 14 publications

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“…The above results further demonstrated the effectiveness of drip-irrigation in salt leaching and its good prospects for saline water utilization (Malash et al, 2008;Meiri et al, 1992). Other studies also found that drip-irrigation was very applicable for utilization and reclamation of saline soils (Kang et al, 2010;Liu et al, 2012;Sun et al, 2013;. In addition, significant differences only occurred in shallow soil layers among treatments when irrigated with saline water.…”

Section: Salt Leachingmentioning

confidence: 58%

“…The optimal SMP threshold was −5 kPa for the first year, and SMP threshold could be controlled at slightly higher than −5 kPa according to the soil salinity environment from the second year. Based on the experimental results of Sun et al (2012Sun et al ( , 2013, we set the SMP threshold at −5 kPa when the roses were transplanted; −10 kPa after a growing season ended; −15 kPa after October 2013, taking into account the rapid salt leaching; and returned to −10 kPa in 2014.…”

Section: Plot Layout and Irrigation Water Managementmentioning

confidence: 99%

“…However, most of these soils cannot be initially used for landscape plants due to their high levels of salt. For example, the mean electrical conductivity of saturated paste extracts (EC e ) is up to 66.7 dS/m in Tianjin coastal soils (Sun et al, 2013) and 28 dS/m in our study area in China -with the salt composition mainly chlorides, in which chloride and sodium (Na + ) account for 60-88% of the anion and cation concentrations, respectively. Accumulation of excess Na + in soil causes numerous adverse phenomena, such as changes in exchangeable and soil solution ions and soil pH, destabilization of soil structure, deterioration of soil hydraulic properties, increased susceptibility to crusting and imbalances of plant-available nutrients in the soils (Akhter et al, 2004;Khoshgoftarmanesh et al, 2003;Prichard et al, 1985;Qadir et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Drip-irrigation is an effective irrigation technique for applying unsaturated soil moisture flow with the design of suitable dripper flow according to soil texture and improved water use efficiency. It has been found highly applicable for utilization and reclamation of saline soils (Kang et al, 2010;Liu et al, 2012;Sun et al, 2013;Wang et al, 2012). However, irrigation of increasing amounts of landscape will consume a large quantity of water, and fresh water resources are very limited in coastal regions.…”

Section: Introductionmentioning

confidence: 99%

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Effect of drip-irrigation with saline water on Chinese rose (Rosa chinensis) during reclamation of very heavy coastal saline soil in a field trial

Kang

Wan

et al. 2015

Scientia Horticulturae

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a b s t r a c tDrip-irrigation with saline water was used for reclamation of very heavy coastal saline soils and its effects on salt-sensitive plants were also evaluated in a three-year trial in the coastal region of east China. The original soil salinity expressed as electrical conductivity of the saturation paste extract (EC e ) was an average of 27.13 dS/m in the 0-100 cm depth. The experiment included five treatments of salinity levels of 0.8, 3.1, 4.7, 6.3 and 7.8 dS/m of irrigation water. Chinese rose (Rosa chinensis), a salt-sensitive species, were planted in the sandy loam soil to determine the effect of saline environment on growth characters and dry matter production. Drip-irrigation had a significant positive impact on salt leaching, and the very highly saline soil became mildly saline after reclamation in root zone of soil profiles irrigated with water of salinity up to 7.8 dS/m. An increase in salinity of irrigation water had adverse effects on plant height, stem diameter, survival rate and dry matter production. Root:shoot ratio increased with increasing water salinity. The values of soil-salt tolerance threshold were 2.39 dS/m at emergence and 2.78 dS/m in the growth period after emergence. The emergence rate and dry mass decreased by 27.39 and 41.19% for each unit of EC e increase in the root zone, respectively. These results implied that drip-irrigation with saline water by controlling soil matric potential under a gravel-sand layer was effective in reclamation of this very heavy coastal saline soil for sensitive species such as Chinese rose.

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Section: Salt Leachingmentioning

confidence: 58%

Section: Plot Layout and Irrigation Water Managementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of drip-irrigation with saline water on Chinese rose (Rosa chinensis) during reclamation of very heavy coastal saline soil in a field trial

Kang

Wan

et al. 2015

Scientia Horticulturae

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“…Selain faktor kesuburan tanah juga ketersediaan air terutama pada musim kemarau. Sun et al (2013) menyarankan untuk meningkatkan keberhasilan penanaman di lahan pantai salah satunya dengan upaya menurunkan salinitas tanah melalui pembuatan lapisan kerikil pada kedalaman 20 cm sehingga air tanah yang mengandung garam tidak naik keatas serta dengan pembuatan irigasi dengan sistem tetes.…”

Section: B Pembahasanunclassified

GROWTH OF NYAMPLUNG (Calophyllum inophyllum L.) ON THREE PLANTING PATTERNS AND DOSE OF FERTILIZER ON SANDY BEACH PANGANDARAN, WEST JAVA

Hani

2016

JPKW

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ABSTRAKNyamplung (Calophyllum inophyllum L.) merupakan salah satu jenis tanaman alternatif baru penghasil bioenergi. Sampai saat ini, informasi mengenai teknik budidaya dan pengolahannya sangat terbatas. Penelitian ini bertujuan untuk mengetahui pertumbuhan nyamplung pada beberapa pola tanam di lahan berpasir Pangandaran sampai umur 4 (empat) tahun. Rancangan percobaan yang digunakan adalah Rancangan Petak Terbagi. Petak utama dengan pola tanam yaitu: agroforestri nyamplung, nyamplung monokultur dan nyamplung+pandan. Sub petak terdiri dari 3 (tiga) dosis pupuk dasar dan lanjutan yaitu: 1) tanpa pemupukan (kontrol), 2) pupuk organik 5 kg+NPK 100 gr/tanaman dan 3) pupuk organik 10 kg+NPK 200 gr/tanaman. Setiap kombinasi perlakuan terdiri atas 25 tanaman yang diulang sebanyak 3 kali, sehingga jumlah total tanaman yang diamati adalah 675 tanaman. Parameter pertumbuhan yang diamati adalah: persentasi hidup, tinggi, diameter dan jumlah cabang sampai tanaman berumur 4 (empat) tahun. Hasil penelitian menunjukkan bahwa interaksi kombinasi perlakuan memberikan pengaruh yang tidak nyata. Pertumbuhan tanaman dipengaruhi secara nyata oleh pola tanam dan pemupukan. Pola agroforestri menghasilkan persen hidup dan pertumbuhan tertinggi yaitu 97,33% dengan tinggi rata-rata 220 cm dan diameter rata-rata 5,08 cm. Penggunaan pupuk yang direkomendasikan adalah 5 kg pupuk organik sebagai pupuk dasar dan 100 gram pupuk NPK/tanaman sebagai pupuk lanjutan sebanyak 2 kali setahun. Kata kunci: Lahan pantai, pola tanam, nyamplung (Calophyllum inophyllum L.) ABSTRACT Nyamplung (Calophyllum inophyllum L.) is one of the new alternatives of biofuels materials in the world. Hitherto, the information on the cultivation and processing techniques is very limited. This study aims to find out the growth of nyamplung on some cropping patterns on sandy beach Pangandaran in 4 (four) years. The experimental design used in this study

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Vegetation establishment in coastal salt‐affected wasteland using drip‐irrigation with saline water

2019

Land Degrad Dev

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Saline water has been successfully used for irrigation in arid, semiarid, and coastal regions, and drip‐irrigation is widely regarded as the most promising system to deliver such water, particularly for reclaiming saline soils, because drip‐irrigation saves water and leaches salts efficiently. As coastal regions continue to be urbanized rapidly, vegetation establishment in coastal salt‐affected wastelands becomes increasingly urgent, but information on plants suitable for the purpose is scanty. The effects of drip‐irrigation with saline water (EC 0.8–7.8 dS/m) on the leaching of salts and on the performance of 15 plants suitable for landscaping were evaluated. The field experiment comprises trees, herbs, and shrubs, and irrigation was scheduled on the basis of soil matric potential threshold set at −5 kPa in 2013, −10 kPa in 2014, −15 kPa in 2015, and −20 kPa in 2016. As a result of irrigation controlled thus, soil that was severely saline initially became mildly saline or even nonsaline in its profile up to a depth of 1 m irrespective of the salinity of irrigation water. However, the survival rates of plants differed with the salinity and SMP threshold: Survival was more than 80% in four herb species and three tree species when irrigated with saline water at 7.8 dS/m for 4 years but decreased, especially in shrubs, as the SMP threshold was lowered. The thresholds of ECiw (electrical conductivity of irrigation water) and SMP were set based on the response of plants to salinity, and some plants are recommended for the ecological environment establishment. A combination of controlled irrigation with saline water and the right mix of plant species are helpful in reclamation of saline coastal areas.

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Effects of an imbedded gravel–sand layer on reclamation of coastal saline soils under drip irrigation and on plant growth

Cited by 52 publications

References 14 publications

Effect of drip-irrigation with saline water on Chinese rose (Rosa chinensis) during reclamation of very heavy coastal saline soil in a field trial

Effect of drip-irrigation with saline water on Chinese rose (Rosa chinensis) during reclamation of very heavy coastal saline soil in a field trial

GROWTH OF NYAMPLUNG (Calophyllum inophyllum L.) ON THREE PLANTING PATTERNS AND DOSE OF FERTILIZER ON SANDY BEACH PANGANDARAN, WEST JAVA

Vegetation establishment in coastal salt‐affected wasteland using drip‐irrigation with saline water

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