Effects of Goose Raising Mode in Areca catechu Forest on Plant Diversity and Soil Chemical Properties
Studying the effects of understory goose rearing density on plant diversity and the soil environment can provide a theoretical basis for rational understory aquaculture management.The experiment was conducted with a 12-year-old Areca catechu forest.Different experimental treatments of goose rearing density treatments were set up from 2021 onward(0,2,4,and 6 geese/64 m2 in the set of CK,A1,A2,and A3 stand treatments,respectively)to study the number,species,and diversity characteristics of weeds,as well as the soil physicochemical properties under different geese rearing densities in the A.catechu forest.The results revealed that(1)with increasing goose rearing density,the number and species of understory weeds in the goose breeding area decreased;the increase in breeding density caused the Margalef,Shannon,and Simpson indices of the weeds to tend to decrease,and reached the lowest values of 0.08,0.13,and 0.09,respectively,when raising six geese·64 m‒2(A3).(2)With increasing breeding density,the pH value and soil organic matter,nitrogen,phosphorus,and other nutrients of the soil in the area of geese breeding activities exhibited an overall rising trend:the maximum increase in soil pH value when raising four geese·64 m‒2(A2)was 4.58%higher than that in the control;the contents of soil organic matter,total nitrogen,total phosphorus,and total potassium in the A3 treatment was 1.40,1.38,1.68,and 1.37 times of that of the control of CK;the soil alkali-hydrolyzable nitrogen content was 153.89 mg·kg‒1(A2),which was 1.99 times higher than that of the CK(p<0.05),and the soil available phosphorus and rapidly available potassium contents were 56.50 mg·kg‒1 and 77.11 mg·kg‒1(A1),respectively,which were significantly higher than those in the CK by 25.32 and 33.86 mg·kg‒1(p<0.05),while the soil available phosphorus and rapidly available potassium content was 56.50 and 77.11 mg·kg‒1,which was significantly higher than that of the CK.In summary,as the density of geese raised under the Areca catechu forest increases,it not only reduces the number,species,and biodiversity of weeds in the area of geese breed but also leads to an overall upward trend in soil nutrient species,and biodiversity of weeds in the area of geese breed but also leads to an overall upward trend in soil nutrient content,indicating that the activity of geese under the A.catechu forest reduces weed abundance and is conducive to increasing soil nutrient levels.
geeseAreca catechu L.poultry under forestsoil nutrientsbiodiversity
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